Results 21 to 30 of about 1,738,277 (218)
Spatial Variation in Coastal Dune Evolution in a High Tidal Range Environment
Remote Sensing, 2020 Coastal dunes have global importance as ecological habitats, recreational areas, and vital natural coastal protection. Dunes evolve due to variations in the supply and removal of sediment via both wind and waves, and on stabilization through vegetation ...
Iain Fairley +4 more
doaj +1 more source
Remote Sensing, 2019 A barchan dune near Tarfaya in Morocco has been surveyed using ground-penetrating radar (GPR) revealing packages of dipping strata within the dune that are truncated by bounding surfaces. The bounding surfaces dip in the downwind direction, truncate sets
Charles S. Bristow
doaj +1 more source
Sand Dune Dynamics Exploiting a Fully Automatic Method Using Satellite SAR Data
Remote Sensing, 2020 This work presents an automatic procedure to quantify dune dynamics on isolated barchan dunes exploiting Synthetic Aperture RADAR satellite data. We use C-band datasets, allowing the multi-temporal analysis of dune dynamics in two study areas, one ...
José Manuel Delgado Blasco +3 more
doaj +1 more source
Remote Sensing, 2021 Understanding the relationship between climatic conditions and dune ecosystems requires the large-scale monitoring of spatiotemporal patterns of dune velocities.
Eslam Ali, Wenbin Xu, Xiaoli Ding
doaj +1 more source
Dune migration at Canoa Quebrada, northeast Brazil
CONTRIBUCIONES A LAS CIENCIAS SOCIALES, 2023 In the coastal area of Ceará State, northeast Brazil, there are large mobile dunefields, including barchans, barchanoid dunes and sandsheets. The migration rate of these dunes, as measured by several studies, varies between 32 m/y and 9 m/y. This paper analyzes the migration of the dunes in Canoa Quebrada Beach, located in the eastern coast of Ceará ...
Adriana Albuquerque Pedrosa +1 more
openaire +1 more source
Geosciences, 2018 Barchan dune fields are a dominant landscape feature in SE Qatar and a key element of the peninsula’s geodiversity. The migration of barchan dunes is mainly controlled by dune size, wind patterns, vegetation cover and human impact.
Max Engel +2 more
doaj +1 more source
Forecasting coastal dune mobility: a logistic regression model driven by meteorological data and climate indices [PDF]
Earth Surface DynamicsPredicting dune mobility under changing climatic conditions remains a challenge in aeolian geomorphology, particularly in data-scarce regions. This study presents a novel application of binomial logistic regression to forecast dune activation and ...
M. Toffani, S. Casadío
doaj +1 more source
Remotely sensed dune celerity and sand flux measurements of the world's fastest barchans (Bodele, Chad) [PDF]
, 2008 Quantifying sand flux with field measurements is an expensive and time-consuming process. We here present an alternative approach using the COSI-Corr software package for Earth surface deformation detection.
Drake, Nicholas +4 more
core +1 more source
Deep learning predictions of sand dune migration
CoRR, 2019 A dry decade in the Navajo Nation has killed vegetation, dessicated soils, and released once-stable sand into the wind. This sand now covers one-third of the Nation's land, threatening roads, gardens and hundreds of homes. Many arid regions have similar problems: global warming has increased dune movement across farmland in Namibia and Angola, and the ...
Kelly Kochanski +4 more
openaire +2 more sources
Summary of the Second International Planetary Dunes Workshop: Planetary Analogs — Integrating Models, Remote Sensing, and Field Data, Alamosa, Colorado, USA, May 18–21, 2010 [PDF]
, 2010 The Second International Planetary Dunes Workshop took place in Alamosa, Colorado, USA from May 18–21, 2010. The workshop brought together researchers from diverse backgrounds to foster discussion and collaboration regarding terrestrial and extra ...
Tirsch, D. +31 more
core +1 more source